Composer Dependency Manager

  1. System Requirements and Installation
    1. Platform Requirements
      1. Supported PHP Versions
        1. Required PHP Extensions
          1. OpenSSL Extension
            1. Zip Extension
              1. cURL Extension
                1. JSON Extension
                2. Operating System Compatibility
                  1. Windows Considerations
                    1. macOS Considerations
                      1. Linux Distribution Support
                      2. Memory Requirements
                        1. Network and Proxy Considerations
                        2. Installation Methods
                          1. Using the Official Installer
                            1. Downloading the Installer Script
                              1. Verifying Installer Signature
                                1. Running the Installation Process
                                2. Manual Installation
                                  1. Downloading the PHAR File
                                    1. Setting Executable Permissions
                                      1. Adding to System PATH
                                      2. Package Manager Installation
                                        1. Homebrew on macOS
                                          1. Chocolatey on Windows
                                            1. APT on Ubuntu/Debian
                                          2. Installation Scope Options
                                            1. System-wide Installation
                                              1. Advantages and Use Cases
                                                1. Potential Conflicts
                                                2. Project-specific Installation
                                                  1. Benefits for Isolation
                                                    1. CI/CD Considerations
                                                  2. Post-Installation Verification
                                                    1. Checking Composer Version
                                                      1. Running Diagnostic Commands
                                                        1. Testing Basic Functionality
                                                        2. Updating Composer
                                                          1. Self-update Command
                                                            1. Version Management
                                                              1. Rollback Procedures

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                                                            1. Introduction to Dependency Management

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                                                            3. Core Concepts and Architecture